VIDEOS: Kyrgios loses his racket, takes a nap

Every shade of the Nick Kyrgios rainbow was on display during the 37th-ranked Aussie's first-round US Open match against No. 3 Andy Murray on Tuesday, with the madness and brilliance coming in equal measure.

On a point early in the second set, after narrowly dropping the thrilling first, Kyrgios loaded up on a forehand, and ... lost the handle.

"To let go of your racket," Kyrgios wondered aloud afterward. "How is that even possible?"

But Kyrgios tried not to let the stress of the match get to him. He was seen reclining during changeovers, trying to sneak in a few seconds of shut-eye.